JPH0129433Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a plate heat exchanger.

2. Description of the Related Art In general, a plate heat exchanger has a plate-shaped fixed frame 1 and a prismatic support 2 erected in parallel with each other on a floor, as shown in FIG. between the upper and lower ends of
Guide bars 3a, 3b are horizontally and parallelly mounted to each other, and a predetermined number of heat transfer plates 4, 4... are installed along the longitudinal direction between the guide bars 3a, 3b.
After stacking and arranging the heat transfer plates 4, 4
... is clamped and fixed between the fixed frame 1 and a plate-shaped movable frame 5 whose upper and lower ends are slidably supported by the guide bars 3a and 3b.

Problems to be Solved by the Invention When the conventional plate heat exchanger is assembled or disassembled, the movable frame 5 is moved away from the support 2 side as shown by the chain line in FIG. It is tilted as shown by the chain line in Fig. 3 so that it can be attached and detached from the upper and lower guide bars 3a and 3b.

Therefore, in the above-mentioned conventional plate heat exchanger, the guide bars 3a, 3b have a length equal to the laminated thickness of the heat transfer plates 4, 4... plus the space for the inclination when the heat transfer plates 4, 4... are attached/detached. , which had the disadvantage that the entire structure was long, and of course the installation area was also large.

Means for Solving the Problems The present invention provides two upper and lower guide bars that are supported on both sides between a fixed frame and a support that are erected parallel to each other, or cantilevered on the fixed frame. are arranged horizontally and parallel to each other, and a movable frame is slidably supported on the guide bar, and a heat transfer plate is formed on the upper and lower ends thereof with engagement grooves capable of engaging with the guide bar. A predetermined number of heat transfer plates are stacked and mounted on the guide bar between the fixed frame and the movable frame, one guide bar supports the load of the heat transfer plate, and this heat transfer plate is clamped and fixed between the fixed frame and the movable frame. In a plate heat exchanger made of It is an exchanger.

Function The plate heat exchanger according to the present invention utilizes the gap formed at the end of the lower guide bar on the moving frame side to attach the heat transfer plate vertically between the guide bars or between the guide bars. It can be taken out from

Embodiment FIGS. 1 and 2 show an embodiment of the plate heat exchanger of the present invention, and the same constituent members as in FIG. 3 are given the same reference numerals.

That is, at the center of the upper and lower ends of the heat transfer plates 4, 4, there are dovetail-shaped engagement grooves 4a, as shown in FIG.
4a... Correspondingly, the cross-sectional shape of the upper guide bar 3a is approximately trapezoidal that expands downward. In this embodiment, the heat transfer plates 4,
This figure shows a suspended plate heat exchanger in which a load of 4 is suspended and supported by an upper guide bar 3a.

On the other hand, the support 2 side end of the lower guide bar 3b on the non-load supporting side is supported by a second support 10 that is disposed parallel to the support 2 and has the same width as the guide bar 3b. A gap 11 larger than the sum of the thicknesses of the heat transfer plate 4 and the movable frame 5 is formed between the end face of the guide bar 3b and the support 2 and the second support 10. The depth of this gap 11 from the top surface of the guide bar 3b is determined by the engagement grooves 4 at the upper and lower ends of the heat transfer plate 4.
The groove depth may be greater than or equal to the sum of the groove depths a and 4a, and in this embodiment, as shown in the figure, the depth is set to reach the floor surface on which the plate heat exchanger is installed.

Further, a lower end of the movable frame 5 is provided in order to move the movable frame 5 beyond the second support 10 to the support 2 side, that is, to move the lower end of the movable frame 5 into the gap 11. , a groove 5a is formed with a size that allows the second support 10 to pass through. The suspended plate heat exchanger is configured such that a part of the trapezoidal part of the upper guide bar 3a can be attached and detached with screws etc. in order to attach and detach the heat transfer plate 4.
a' is provided opposite the gap 11.

The procedure for attaching and detaching the heat transfer plate 4 in the plate heat exchanger according to the present invention will be explained below.

First, the movable frame 5 is moved by the guide bars 3a and 3b.
The top is slid and moved to the support 2 side, and positioned between this support 2 and the second support 10, that is, within the gap 11.

Next, the heat transfer plate 4 is inserted vertically without tilting between the place where the detachable part 3a' of the guide bar 3a was removed and the gap 11 on the left side of the movable frame 5, and then the heat transfer plate 4 is placed on the upper side. Engagement groove 4
A is lifted up so that it can be inserted into the trapezoidal part of the guide bar 3a, and then moved to the left so that the engagement groove 4a on the upper end side of the heat transfer plate 4 and the upper guide bar 3a are fitted, and the heat transfer While supporting the plate 4, the lower end engaging groove 4a and the lower guide bar 3b are engaged to regulate the position. After moving the heat transfer plate 4 toward the fixed frame 1 along the guide bars 3a, 3b, the heat transfer plates 4, 4, . . . are sequentially stacked on the fixed frame 1 in the above-described manner. When a predetermined number of heat transfer plates 4 have been stacked, the movable frame 5 is moved toward the fixed frame 1, and the fixed frame 1 and the movable frame 5 are tightened with bolts or nuts to transfer the heat between them. The heat plates 4, 4... are clamped and fixed.

On the other hand, when removing the heat transfer plate 4, the operation described above may be performed in reverse.

In the above embodiment, the present invention is applied to a plate heat exchanger in which the heat transfer plate 4 is suspended and supported by the upper guide bar 3a, but the upper and lower guide bars 3a, 3b has a round bar shape, and engagement grooves 4a, 4b at the upper and lower ends of the heat transfer plate 4
The present invention can be similarly applied to a small-sized plate heat exchanger in which the heat transfer plate 4 is supported by a guide bar 3b on the lower side. Furthermore, in this type of plate heat exchanger, a semicircular hanger piece is used in the engagement groove 4a on the upper side of the heat transfer plate 4, and the guide bar 3a on the upper side
It may also be applied in a hanging manner. In addition, a cantilever support method in which the number of laminated heat transfer plates 4 is small, that is,
Even in the case of a plate heat exchanger in which the upper and lower guide bars are cantilever-supported on a fixed frame, the length of the lower guide bar at the end of the movable frame should be shorter than that of the upper guide bar. It can be applied by forming a gap sized to allow insertion of a heat transfer plate. In this case, a stopper is attached to the free end of the upper guide bar to prevent the movable frame from coming off the free end of the upper guide bar, and therefore the moving frame moves to a position where it hits this stopper. With the frame moved, shorten the lower guide bar so as to form a gap sized to insert a heat transfer plate between the free end of the lower guide bar and the moving frame. .

Effects of the invention As explained above, the plate heat exchanger according to the invention makes it possible to attach and detach the heat transfer plate without tilting it by using the gap formed at the end of the lower guide bar on the movable frame side. This eliminates the need for space for tilting the heat transfer plates, which is required in conventional plate heat exchangers. That is, upper and lower 2
Since the length of the book guide bar can be shortened and the distance between the fixed frame and the stand can be narrowed, the plate heat exchanger can be made smaller, the installation area can be reduced, and manufacturing costs can also be reduced. .

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an embodiment of a plate heat exchanger according to the present invention, and FIG. 2 is an enlarged longitudinal sectional view of the main part of FIG. 1. FIG. 3 is a schematic side view illustrating a conventional plate heat exchanger. 1...Fixed frame, 2...Support, 3a, 3b
... Guide bar, 4, 4... Heat transfer plate, 5... Moving frame, 10... Second support, 11... Gap.

Claims (1)

[Scope of utility model registration request] Two upper and lower guide bars are disposed horizontally and in parallel between a fixed frame and a support that are erected in parallel to each other in a double-sided supported manner, or in a cantilever supported manner on the fixed frame, A movable frame is slidably supported on the guide bar, and a heat transfer plate having engagement grooves formed at the upper and lower ends capable of engaging with the guide bar is attached to the guide bar between the fixed frame and the movable frame. In a plate heat exchanger in which a predetermined number of heat transfer plates are stacked, one guide bar supports the load of the heat transfer plate, and the heat transfer plate is clamped and fixed between the fixed frame and the movable frame, the lower side A plate heat exchanger characterized in that the length of the guide bar at the end on the movable frame side is shorter than that of the upper guide bar to form a gap having a size in which a heat transfer plate can be inserted.